Williams E H, Bunkley-Williams L, Dowgiallo M J, Dyer W G
Caribbean Aquatic Animal Health Project, Department of Marine Sciences, University of Puerto Rico, Lajas 00667-0980.
J Parasitol. 1991 Dec;77(6):1019-22.
The effect of collecting trauma on the metazoan parasites in the alimentary canal of French grunts, Haemulon flavolineatum (Desmarest) (Perciformes: Haemulidae), was evaluated by comparing the number and species of parasites in 10-fish lots that were identical except for collecting technique. Collecting techniques included speared (dead), speared through the caudal peduncle (live), trapped, dipnetted at night, and ostracitoxin exposed. Dead, trapped, and toxin-stressed fish had no alimentary canal parasites, whereas speared-live and night-dipnetted fish had comparable numbers of parasites. Fish collected by using apparently traumatic techniques quickly expelled their alimentary canal metazoan parasites. Our results cast doubt on the reliability of traditional fish parasite surveys, studies on population dynamics of fish parasites, and experiments that employ these traumatic collecting methods.
通过比较除采集技术外其他方面相同的10条法国鲷（Haemulon flavolineatum，德斯马雷斯特）（鲈形目：Haemulidae）鱼群中寄生虫的数量和种类，评估了采集创伤对其消化道后生动物寄生虫的影响。采集技术包括用矛刺捕（死鱼）、通过尾柄用矛刺捕（活鱼）、诱捕、夜间用抄网捕捞以及暴露于牡蛎毒素。死鱼、诱捕的鱼和受毒素胁迫的鱼没有消化道寄生虫，而用矛刺捕的活鱼和夜间用抄网捕捞的鱼寄生虫数量相当。采用明显具有创伤性的技术采集的鱼会迅速排出其消化道中的后生动物寄生虫。我们的结果对传统鱼类寄生虫调查、鱼类寄生虫种群动态研究以及采用这些创伤性采集方法的实验的可靠性提出了质疑。
